FNC 9 took place on December 23, 2022, at the Zeleni Brijeg Sports Hall in Sisak, Croatia. The event's main attraction was the high-profile debut of Croatian fan-favorite Filip "Nitro" Pejić, who secured a dramatic first-round TKO comeback victory against Brazilian Marcos Vinicius Costa. The co-main event saw Matej Batinić earn a hard-fought split decision win over Marcin Lazarz. The card is also remembered for one of the year's best knockouts, delivered by Đorđe Bukvić via a spectacular high kick against Jakob Kosić, capping off a successful year-end showcase for the promotion.

FNC 9: Filip Pejić vs. Marcos Vinicius Costa